Handhold-forming machine.



No. 856,767. PATENTED JUNE 1l, 1907. A. J. COLVIN, C. G. HOGKETT 6r, J.W. FITZPATRICK. HANDHOLD FORMING MACHINE.

APPLICATION FILED 00T.12, 1906.

3 SHEETS-SHBET 1.

110.356,767. PATBNTED 111111111, 1907. A. J. 001.7117, o. (1.1101111511& J. W. FITZPATRIGK.

' HANDHOLD PORMING MACHINE.

APPLIOATION FILED 00T.12, 1906.

3 SHEETS-SHEET Z.

No. 856,767. PATBNTED JUNE 1l, 1907. A. J. COLVIN, C. G. HOGKETT & J. W.FITZPATRIGK.

HANDHOLD FORMING MACHINE. APPLIoATIoN FILED 00112.' 1906.

3 SHEETS-SHEET 3.

1 Tij-5 ATTORNEYS a time by a feeding block F, to move a blank 4' theblank D, and which blank being after- To-all whom, it may concern:

tion.

vrepresented in-the accompanying drawings l forming a part of'thisspecification, in which .similar xcharacters `of reference indicate cor-UNITED sfr-Arias PAlrENT OFFICE.

ANDREW JACKSON COLVIN, CLAUDE| GATCH HOCKETT, AND JOHN WILLIAMFITZPATRICK, OF -GRANTS PASS, OREGON.A

HANDHOLD-FORMING MACHINE Specification of Letters Patent.

latented June 11, 1907.

Be it known that we, ANDREW JACKSON CoLvIN, CLAUDE GATOH HOCKETT, andJOHN WILLIAM FITZPATRICK, citizens of the United States, and residentsof Grants Pass, in the county of Josephine and State of Oregon, haveinvented a new and Improved Handheld-Forming Machine, Oflwhich thefollowing is a full, clear, and exactdescrip- The invention relates towood working machinery, and its object is to provide -a new and improvedhand hold forming machine Inore especially designed for cutting handholds in blank boards employed for forming boxes and the like.

The invention consists of novel features andv parts and combinations of'the same, which will be more fully described hereinafter and thenpointed out in the claims.

A practical embo'diment'of the invention is responding parts in all theviews.

Figure 1 is a plan view of the improvement, parts of the hoppercontaining the blanks be- Ing shown in section; Fig. 2 is a longitudinalsectional side elevation of the same on the line 2 2 of Fig. 1; Fig. 3is a cross section o'f the same on the line 3 3 of Fig. 1,. and Fig. 4is a cross section of part of the feed mechanism for the blanks, thesection being on the line 4-4 of Fig. 1.

On a suitably constructed framework A is mounted a table B supporting ahopper C for containing a pileof blanks D, the lowermostof which ismoved from under the pile one at along guideways E over the table B toand between dado or cuttei` heads G, G', for the latter to cut handholds into opposite faces of ward cut in two sections so as to provide ahand hold for each blank section. The cutter heads G and G have theirshafts G2 and G3 journaled insuitable bearings carried on crossfheadsl-I and H mounted to-slide to ward andfrom each other in verticalguideways H2 attached to the framework A, as` plainly illustrated in thedrawings. The cross heads H and H are reciprocated simultaneously from amain driving shaft I extendl vthe cutter heads G and G simultaneouslytoward and from each otlier In order to regulate the depth the cutterheads G and G cut into the opposi te faces of'the blank' D the eccentricrods J?, J3 are provided with turn buckles J, J5 to lengthen or shortenthe said eccentric rods and consequently to move the cross heads H and Hcorrespondingly and likewise the cutter heads G and G for the latter tocut to a greater or less depth into the blank D. The feed block Foperates in unison with ythe reciprocating motiongiven to the cutterheads G and G and for this purn ose the feed block F is mounted to slideengthwise in suitable guidewa'ys F arranged on the main frame A, and thesaid feed block F is pivotally connected by a pitman F2 with a crank armFil secured on the main shaft I,

so' that when the latter is rotated a reciprocating motion in alengthwise direction is given to the feed block F, and when the lattermoves forward in the. direction of the arrow -a then it movesthelowermost blank D out when the feed block F is on the return strokethe cutter heads G and G move toward each other and cut into oppositefaces of the blank D'extending Abetween the cutter heads G and G at thetime. In order to regulate the stroke of the feed block F according tothe width of the blanks D treated at the time, the connection betweenthe pitman'fF2 and the crank IOOI IOS

with the latter.

arm F3 is adjustable by a wrist pin F adjustable within an elongatedslot 4F5 formed in the crank arm F3.

In order to rotate the -cutter heads. G', G from the main shaft I thefollowing arrangement is madey'On the shafts G2, GfV are secured pulleysK and K connectedby-belts K2, K3 with pulleys K4., K5 secured in acountershaft K journaled in suitable bearings on the rear end of themainfra-me A. On the conntershaftK is. secured a pulley L connected by abelt L with a pulley L2 attached to the main shaft I, so that when thelatter is rotated'a rotary motion'isgiven to the coun- V tershaft K,which'by the pulleys K4, K5, the

belts K2, K3 and the pulleys K, K. imparts a rotary motion to the shaftsG2, G? and consequently to the cutter heads G, G.. The belt K3 ispreferably crossed to rotate the cutter head G `in the oppositedirection to the cutter head G. The blank D acted on by lthe cutterheads G, G at the time is held against outward movement by springcatches N secured to the guideways E, it being understood thatthe springcatches N automatically release the finished blank when the feed block Fforces the blanks 'Dforw.a'rd in the guideways. In order to preventrearward movement of the blank acted on bythe cutter heads G, G at thetime, dogs O areused for the purpose, the dogs being hung on theguideways E and inclined forward, the ser# rated bottom edges of thedogs 0 engaging the top of the blank immediately in the rear of theblank acted on by the cutter heads, see

Fig. 2. versely adjustable on the to accommodateblanks D ifferent width,and for this purpose each'guideway is pro- .The guideways E are heldtransvided with slotted lugs E engaged by bolts The feed block F' E2held on the-table B. extends up througha slot B formed length'- wise inthe table B approximately midway between the guideways E. u

The hopper C"s preferably made ofra number of posts C lengthwiseadjustably secured bv set screws C2 onv the guideways E to move A crossboard C3 is held vertically adjustable on the front posts C of thehopper C by the usel of bolts C, 'and this board C3 extends with itslower edge close tothe top of the lowermost blank D, to prevent .morethan the lowermost blank D from being pushed out of the hopper C at atime bythe feed block F. t

The operation is as follows 'When the several parts are in the positionillustrated in the drawings and the main shaft I is rotated, then thecutter heads G, G cut into the top and bottom faces vof the blank D ino'stion between the cutter heads, G, G"at t etime.

As soon as the hand holds have been cut to the desired depth the cutterheads G, G move vertically away from the blank provided'with the handholds, and at this time top of the table B o d stare? the feed. block Fmoves forward in the direc? tion of the arrow a", and pushes the lower-Inost blank D out .from under the pile of blanks D and forward in theguideways E, lso that the blanks D in front `of this lowermost blank Dare moved forward, and the outer most finished blank is moved out'from.b e'

tween' the cutter heads G', G Vand another blank D is moved between the`Said'cutter heads, and its movement is limited by the .spring catches N.During the return stroke vtion a blank'is provided with two hand holds,

and when. the blanki's subsequently'divided into two box sections, eachbox section has a hand hold. By having two cutter heads G, G cuttingsimultaneously into the blank at opposite faces and opposite each otherno further holding down'devices for the blank are required.

Having thus described our invention, we

claim as new and desire to secure by Letters -the blank when between thecutters, and

means forl imparting movement in .unisonl to the said feed mechanism andthe said cutter heads for the latter to cut the blank vat lthe time thefeed mechanism is on thev return stroke and to moveout of'engagementwith the blank at the time the feed mechanism moves another blankforward.

2. A machine of the classdescribed comiOO los.

IIO.

prising a pair of 'oppositely disposed revolul y ble cutter heads, meansfor simultaneously moving the said cutter heads toward and from eachother, means for feeding a blank' between the cutters duringtheirmovem'ent Vaway from each other, anda spring stop cutters, a springstop for temporarily restraining the forward movement of the blank, andagainst which the blank is fed, means for moving the cutters in., unisontowardA 'the blank, and means for preventing the back- 4ward movement ofthe blank during the operation of the cutters.

4. A machine of the class described, comprising a pair of oppositelydisposed revoluble cutter heads, means for simultaneously moving thesaid cutter heads toward and from each other, and a feed mechanismoperating in unison with the said cutter heads for feeding a blankbetween the cutter heads at the time the cutter heads are in extremeapart positions, thefeeding mechanism being on the return stroke duringthe time the cutter heads move toward each other and become active. f

5. A machine of the class described, provided with a pair o'f revolublecutter he'ads, cross heads mounted to reci rocate in unison and in whichthe cutter hea s are journaled,`

means for impartinga reciprocating movement to the cross heads to movethe cutter heads simultaneously toward and from each other, means formoving a blank between the cutter heads during their movement from eachother, and a spring stop against which and in which the cutter heads arejournaled,

eccentrics having adjustable eccentric rods connected with the saidcross heads, a mam shaft carrying the eccentrics, a hopper forcontaining a pile of blanks, a feed mechanism actuated from the saidmain shaft for removing the lowermost blank from the said hop er andmoving it between the said cutter heads at the time they are in widestseparate position and a spring stop against which the blank is fed fortemporarily restraining the forward movement thereof.

7. A machine of the class described provided with a pair of revolublecutter heads, cross heads mounted to reciprocate in unison and in whichthe cutter heads are journaled, eccentrics having adjustable eccentricrods connected with the said cross heads, a main shaft carrying theeccentrics, a hopper for containing a pile of blanks, a reciprocatingfeed block for moving the lowermost blank out of the said hop er, acrank arm on the said main shaft, a ink connecting the said crank armwith the said feed block and a spring sto against which the blank is fedfor temporari y restraining the forward movement thereof.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

l ANDREW JACKSON COLVIN.

CLAUDE GATCH HOCKETT. JOHN WILLIAM FITZIA'IRICK.

Witnesses:

R. P. CHESHIRE, J. C. HooKETT.

